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Positronic Lithium, an Electronically Stable Li-e+ Ground State

Ryzhikh, G. G. and Mitroy, Jim (1997). Positronic Lithium, an Electronically Stable Li-e+ Ground State. Physical Review Letters,79(21):4124-4126.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 81 times in Scopus Article | Citations

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Title Positronic Lithium, an Electronically Stable Li-e+ Ground State
Author Ryzhikh, G. G.
Mitroy, Jim
Journal Name Physical Review Letters
Publication Date 1997
Volume Number 79
Issue Number 21
ISSN 0031-9007   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-4243199462
Start Page 4124
End Page 4126
Total Pages 3
Place of Publication College Park, United States
Publisher The American Physical Society
HERDC Category C1 - Journal Article (DEST)
Abstract Calculations of the positron-Li system were performed using the stochastic variational method, yielding a minimum energy of -7.532 08 hartree for the L = 0 ground state. In contrast with previous calculations of this system, the system was found to be stable against dissociation into the Ps+Li+ channel with a binding energy of 0.002 17 hartree; it is therefore electronically stable. This is the first instance of a rigorous calculation predicting that it is possible to combine a positron with a neutral atom to form an electronically stable bound state.
DOI http://dx.doi.org/10.1103/PhysRevLett.79.4124   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
Additional Notes Copyright by the The American Physical Society


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